Boat-propelling device



S WISNIEWSKI.

BOAT PROPELUNG DEVICE. APPLICATION FILED MAY 26. 1921.

1,410,048. Patented Mar. 21, 1922.

2 SHEETS-SHEET l- 314mm lSoz. Stanislaw wasntewska 3 WISNIEWSKI.

BOAT PHOPELLING DEVICE.

APPLICATION FILED mAvzs. 1921.

1 ,410,04:8. Patented Mar. 21, 1922.

2 SHEETS-SHEET 2.

m'nMoz Stanusmw Lsmews Ki UNITED STATES PATENT OFFICE.-

STANISLAW wrsmnwsxr. or nnnrnonn, oommerrcu'r.

. IBOAT-PROPEL'LING DEVICE.

This invention relates to improvement in boat propelling devices, particularly to devices operated by human power for driving two paddle wheels for propelling the boat through the water.

The principal object of the invention is the provision of a device of this character adapted to be actuated by two persons sitting at the ends of a board supported in its middle or center of gravity to operate the board in the manner of a see-saw.

Another object of the invention is to provide a device in which the power developed by the operation of the see-saw is readily transformed and transmitted to the paddle wheels for propelling the boat.

A further object of the invention is to provide a boat propelling device which can be cheaply constructed and installed in any boat, and which is capableof entertaining persons, constituting a means for a healthy outdoor sport.

These and other like objects are attained by the novel construction and combination of parts hereinafter'described and shown in the accompanying drawings forming amaterial part of this disclosure, and in which Figure 1 is a top plan View along line 11 of figure 2 of a boat equipped with a propelling device constructed according to the present invention.

Figure 2 is a longitudinal vertical section through a boat, figure 1, the section being taken on line 2--2 of said figure 1.

Figure 3 is a side view of a boat, its paddle wheel and the see-saw board.

Figure 4 is a top plan view upon a boat, its board, seats and paddle wheels, and

Figure 5 is a detail View of one of the angular operating links.

Referring to the drawings, the boat 10 of any ordinary well known construction and material has attached to its bottom 11 at the front and rear ends thereof posts 12 and 13 respectively, to the upper ends of which are pivotally secured between their ends, as at 14 and 15, approximately U-shaped links 16 and 17 The inner arms of these links carry at their Specification of Letters Patent, Patented 111 1922 Application filed May 26, 1921;

Serial No. 472,689.

ends actuating elements 18 and 19 engaging operating members 20 and 21 pivotedintermediate their ends, as'at-22'and 23" and-having teeth-22 and '23 at their upper: faces for a purpose. which described. a

To the free ends of the'outer arms of the links 16 and 1 7 are pivotally secured, as at 24 and 25, the lower ends of bars 26 and 27, the'upperends of which are-pivotally secured toears 28 and 29. attached to the underside of a board or plank= 30su-pporte'din its center or gravity by means of two intereng'ag'ing links 31 and 32, one of which, 31 being se cured to the underside of the plank, whilethe' other is secured to a block- 33 on top of a ]chamber 34 provided in themiddle of the oat.

The'board 30 is equipped at its ends with back rests 35 and 36 for the persons'operatingthe see-saw and the-feet of these persons find a support upon the top covers 37 and 38 of auxiliar chambers 39 and 40 arran .d within the boat at bothsides of the charm r 34.

' Horizontal operating rods 39 and 40 are provided with teeth at the-lower facesof their outer ends adapted to be enga edby the teeth 22 and-23" of the operating-membore-20 and 21 and their opposite inner ends are extended into the central chamber 34 and to these ends are attached angular oper ating links'41 and 42', provided with fingers 43 and 44 at their outer ends adaptedf' to*e'n-- gage: the teeth of" a -atchetwheel- 45" securedto a vertical shaft 46 on top of a horizontal gear wheel 47 carried by said shaft and in mesh with a smaller vertical gear wheel 48 on a stub shaft 49 journaled in a bearing 50 secured to the inner side wall of the boat. This gear 48 in turn meshes With a small gear 51 on a shaft 52 transversely journaled in bearings 53 attached to the side walls of the boat and extended beyond the same to carry paddle Wheels 54 and 55.

The operating links 41 and 42 are constructed as illustrated on an enlarged scale in figure 5, they are pivoted as at .56 to the inner ends of rods 39 and 40' and provided will hereafter be" more fully with a shoulder 57 adapted to engagethe outer side edges of'the rods 39' and 40,

while a spring 58 is connecting the pivot points 56 with the arms of the links carrying the operating fingers 43 and 44 respectively.

Springs 59 and 60 are secured with one of their ends to the rods 39 and 40 intermediary their ends, while their other ends restagainst the outer walls of the chamber 34.

The device operates inthe following mannera Upon the operation of the see-saw the rods 39 and 40 will be moved alternately inwardly and outwardly b the intermediary of the bars 26, 27, and lin s 16 and 17 so that the fingers 43 and 44 of the operating links 41 and 42 willalternately engage the backs of thelteeth of the ratchet wheel 45 rotating the samev and its shaft with the gear wheel 4?.

The rotation of this wheel will be trans- Initted through the gears 48 and 51 to the shaft 52 of the propellers and operatethe same to propel the boat which may be steered by any well known means, not shown.

As soon as one of the fingers 43 or 44 has pushed thetooth, it engages, forward, its

springw58 willallow the passage of its lower arm and finger over the side face of the following tooth, so that it will be ready for the next operation to engage another of the teeth. a i

,It will be obvious thata device of this character-may be made in many sizes and that changes may be made in the general arrangement thereof as well as in the constructlon of its minor details without de parting from the scope and spirit of the invention. i w a Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is- 1. In a device of the class described in combination with a boat and see-saw in said b0at, a pair of substantially U-shaped links pivotally secured to posts erected on the bottom of said boat, means: for connecting one end of said links to said see-saw, a pair of 7 horizontal operating rods, having rack teeth on theirlower end faces, a pair of toothed operating members in engagement with the teeth of said rods and connected to said links,

a central vertical shaft, a ratcht wheel on 45 said vertical shaft adapted to be rotated by said rods, a gear wheel on said vertical shaft rotating with said ratchet wheel, a propeller shaft, a pair of paddles on the outer ends of said shaft and means for transmitting the rotary motion of said gear to said shaft and paddle wheels.

2. In a device of the character described in combination with a boat havinga transverse shaft, and side paddle wheels on said shaft for propelling said boat, a see-saw in said boat, a 1pair of horizontally disposed spring contro ed operating rods, means for transmitting the see-saw movement as a reciprocatory motion to said operating rods, a ratchet wheel and gear on a vertical shaft, fingers adapted to be actuated by said reciprocatory horizontal rods for rotating said ratchet wheel and gear, and a train of gears in mesh with said gear wheel for transmitting the rotation of said gear wheel to said transverse paddle wheel shaft.

In a device of the class describethaseesaw, a pair of horizontal reciprocatory rods, means for transmitting the see-saw motion to said reciprocatory rods as a to and fro movement, operating links at the inner ends of said rods,a ratchet wheel, fingers at the inner ends of saidlinks for alternately eni gaging the teeth of said ratchet wheel for rotating the same, springs and shoulders on said fingers for allowing the passage of the same by the teeth of said ratchet wheel after its operation, a pair of paddle wheels, a-

shaft for said wheels, a gear on said shaft andmeans for transmitting the rotation of said ratchet wheel to the'gear' on said shaft for operating the paddle wheels upon the operation of said see-saw.

In testimony whereof-I have afiixed my signature.

STANISLAW WISNIEWSKI. 

